Error in parsing the last Output

[Eyantra698Sumanto]

Error in parsing the last Output in a module

module dut(

       input clk,rst,
       output reg [2:0]S1,
       output reg [2:0]S2,
       output reg [2:0]S3,
       output reg [2:0]S4
       );

Parsing the above code gives number of ports for S4 as 1.